<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <title>gsy_flutter_demo</title>
  <style>
    .loading {
      display: flex;
      justify-content: center;
      align-items: center;
      margin: 0;
      position: absolute;
      top: 50%;
      left: 50%;
      -ms-transform: translate(-50%, -50%);
      transform: translate(-50%, -50%);
    }

    .loader {
      border: 16px solid #f3f3f3;
      border-radius: 50%;
      border: 15px solid ;
      border-top: 16px solid blue;
      border-right: 16px solid white;
      border-bottom: 16px solid blue;
      border-left: 16px solid white;
      width: 120px;
      height: 120px;
      -webkit-animation: spin 2s linear infinite;
      animation: spin 2s linear infinite;
    }

    @-webkit-keyframes spin {
      0% {
        -webkit-transform: rotate(0deg);
      }
      100% {
        -webkit-transform: rotate(360deg);
      }
    }

    @keyframes spin {
      0% {
        transform: rotate(0deg);
      }
      100% {
        transform: rotate(360deg);
      }
    }
  </style>
</head>
<body>
  <div class="loading">
    <div class="loader"></div>
  </div>
  <script src="main.dart.js" type="application/javascript"></script>
</body>
</html>
